CO2 transport has many hazards and uncertainties. Task 7 will provide knowledge to ensure safe and efficient CO2 transport. E.g. running-ductile fractures in CO2 pipelines, ship transport, impurities and non-equilibrium flow of CO2 will be investigated.

The CCS value chain roughly consists of three phases: Capture, Transport and Storage. This Task will provide knowledge to ensure safe and efficient CO2 transport.

To continuously evaluate plans and results related to the Task, an industrial interest group has been put together, consisting of members from Aker Solutions, Gassco, Larvik Shipping, Shell, Statoil and Total. The group will remain operational throughout the lifetime of the Task, and new partners are welcome.

As both deployment cases involve transportation, this Task is relevant for both DC1 and DC2, and it is related to other tasks, in particular:

The Task will:

  • Develop improved models for the prediction and description of running-ductile fractures (RDF – link) in CO2 pipelines.
  • Perform depressurization experiments to develop and validate fast-transient flow models taking impurities and non-equilibrium flow into account. Read more about depressurization experiments on these pages: 
  • Perform experiments and modelling studies related to efficient transport of CO2 by ship.
  • Develop efficient and robust numerical methods for multiphase flow of CO2 with impurities.

Results 2018

Main results

  • Commissioning of the ECCSEL depressurization facility brought much closer.
  • Further validation of SINTEF coupled FE-CFD model for fracture-propagation control, published at IPC2018.
  • Battelle two-curve tool software updated with new functionality, including GERG-2008 and EOS-CG equations of state.
Visit at ECCSEL depressurization vessel, April 2018
Depressurization tube, November 2018

Results 2017

The work focused on CO2 transport by pipelines. We established a roadmap for the development of an engineering tool for fracture propagation control in CO2-transport pipelines, which can help ensure safe and cost-efficient CO2 transport. By engineering tool, we mean a tool that can be used with relative ease and with short runtimes by an engineer using a desktop computer, as opposed to heavier finite-element (FE) and computational fluid dynamics (CFD) simulations. The SINTEF coupled FE-CFD code is an essential part of the development, due to the physical insights that can be gained through its use.

Several publications have hypothesized that the CO2 flow exiting the pipeline through a fracture is not in equilibrium. We made some progress in the modelling of non-equilibrium flow.

Work was also performed on the validation of our procedure for calibrating the material model in the FE-CFD code.

The NCCS industry partners, in particular Aker Solutions, Gassco, Larvik Shipping, Shell, Statoil and Total are following up and providing input to the work.

Conference Publications


Calibration of pipeline steel model for computational running ductile fracture assessment - Gruben G, Dumoulin S, Nordhagen H, Hammer M, Munkejord ST. 29th International Ocean and Polar Engineering Conference, ISOPE 2019. Honolulu, Hawaii, USA


Validation of the FE-CFD coupled code against a full-scale burst test - G. Gruben G., S. Dumoulin, H. Nordhagen, M. Hammer, S.T. Munkejord.

Pop Science Articles


Dette testanlegget bereder grunnen for transport av CO2. Det høres. - M. Sprenger, Gemini 2019-06-17

Task leader